Explore the attributes and methods on a foreign object in python

foreign_object_exploration.py

def reduce_namespace_to_public_only(namespace_directory : list) -> list:
  """
  returns: list of public attribute and or method names
  """
  _is_public_facing = lambda x: not x.startswith('_')
  
  public_namespace_only : list = sorted(
    filter(_is_public_facing, namespace_directory)
  )
  return set(public_namespace_only)


def main_object_namespace_exploration(foreign_object):
  foreign_object_namespace_directory : list = foreign_object.__dir__()
  foreign_object_attribute_namespace : list = sorted(foreign_object.__dict__.keys())
  
  # filter down to just public namespace
  # filter attribute only namespace list to only public
  foreign_object_public_namespace = reduce_namespace_to_public_only(namespace_directory=foreign_object_namespace_directory)
  foreign_object_public_attributes = reduce_namespace_to_public_only(namespace_directory=foreign_object_attribute_namespace)
  
  # partition PUBLIC ONLY namespace to ATTRIBUTES and METHODS
  # set difference between 
  # symmetric set difference. 
  # __dir__ returns everything both methods and attributes
  # __dict__ returns only attributes
  
  foreign_object_public_methods = foreign_object_public_namespace ^ foreign_object_public_attributes
  foreign_object_public_attributes = foreign_object_public_attributes
  
  return foreign_object_public_methods, foreign_object_public_attributes


# DEMO
class A:
  def __init__():
    self.attribute_a = 1
    self._private_attribute_b = False
   
  def _private_method(self):
    return "GTFO"
  
  def public_method(self):
    return "hello world"

  
foreign_object_a = A() 
main_object_namespace_exploration(foreign_object_a)